Discourse analysis examines language above the sentence level, including stretches of spoken or written language. There are structural and functional approaches. Structurally, discourse looks at relationships between linguistic units. Functionally, discourse fulfills various functions like referring or expressing oneself. Recent approaches view discourse as a social practice shaped by and having implications for social structures. Speech act theory analyzes the actions performed through language, such as statements, questions, promises. Pragmatics studies how context and implicature contribute to meaning.